The impact of extremely low frequency electromagnetic field (50 hz, 0.25 mt) on fitness components and wing traits of Drosophila subobscura
2015
Autori:
Patenković, AleksandraSavić, Tatjana
Kenig, Bojan
Kurbalija Novičić, Zorana
Anđelković, Marko
Tip dokumenta:
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
Over the past century, man-made electromagnetic fields (EMF) have
changed the natural environment, representing one of the most common and
rapidly increasing environmental factors as technology advances.
Numerous studies of biological effects of exposure to EMF have been
performed on Drosophila during the last 30 years, showing contrasting
results. In an attempt to determine whether EMF exposures might affect
the development of Drosophila, the present study examines phenotypic
variations through direction and range of changes in several fitness
components and wing length and width, of Drosophila subobscura isofemale
lines, affected by 50 Hz EMF. Embryonal and early post-embryonal stages
were exposed to homogeneous sinusoidal 0.25 mT EMF of 50 Hz. The EMF
exposure caused a significantly prolonged developmental time and
significantly increased the wing size with the opposite direction of
directional asymmetry compared to the control group. These results shows
that even such a weak EMF has the potential to modulate, through
developmental pathways, some of the fitness-related traits, wing size,
and wing asymmetry in D. subobscura even after one generation of
exposure, showing that extremely low frequency (ELF) EMFs have relevant
consequences on development, adult morphology, and fitness.
Ključne reči:
Drosophila subobscura; electromagnetic fields (EMF); fitness components; wing size; directional asymmetryIzvor:
Genetika-Belgrade, 2015, 47, 3, 967-982
DOI: 10.2298/GENSR1503967P
ISSN: 1820-6069